/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineFulfillmentInterface.h
Initiate the checkout process for obtaining offers via code redemption
void RedeemCode ( const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & UserId, const [FRedeemCodeRequest](API\Plugins\OnlineSubsystem\Interfaces\FRedeemCodeRequest) & RedeemCodeRequest, const [FOnPurchaseRedeemCodeComplete](API\Plugins\OnlineSubsystem\Interfaces\FOnPurchaseRedeemCodeComplete) & Delegate )